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I'm running Mist on Windows, and I want to change the datadir because I'm running out of space on the C drive, but I want it to be on the actual Ethereum blockchain.

Will I run into trouble if I change the datadir?

  • No, you can simply change the datadir to whatever you like. Do you know how this is done in mist? – Waqar Lim Feb 4 '16 at 10:12
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    To change it in Mist, first run geth with the --datadir flag, and then launch Mist. (They both need to be running) – Fernando Tiberti Feb 4 '16 at 10:53
  • To set datadir in Mist: ethereum.stackexchange.com/questions/2551/… – eth May 28 '16 at 10:13
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No, you are free to change the data directory. It's just a place to store the blockchain, it doesn't mean that you would be on a different chain.

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    but does mist allow the --datadir flag? – knocte May 28 '16 at 9:56
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Changing the datadir, by using --datadir is all OK.

Running Geth on the testnet is a different flag, --testnet.

If you've been using Geth and have ether in your accounts, don't forget to backup all your keystore files before deleting the old datadir.

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